28 July History
- 1540 - Henry VIII of England marries Catherine Howard.
- 1615 - French explorer Samuel de Champlain discovers Lake Huron on his seventh voyage to the New World.
- 1794 - Robespierre is beheaded in France.
- 1808 - Sultan Mustapha of the Ottoman Empire is deposed and his cousin Mahmud II gains the throne.
- 1835 - King Louis-Philippe of France survives an assassination attempt.
- 1863 - Confederate John Mosby begins a series of attacks against General Meade's Army of the Potomac.
- 1868 - The 14th Amendment to the Constitution, which guarantees citizenship to all those born or naturalized in the United States, is adopted.
- 1898 - Spain, through the offices of the French embassy in Washington, D.C., requests peace terms in its war with the United States.
- 1914 - Austria-Hungary declares war on Serbia, beginning World War I.
- 1920 - Pancho Villa surrenders to the Mexican government.
- 1932 - The Bonus Army of impoverished World War I veterans is violently pushed out of Washington, D.C.
- 1941 - A Japanese army lands on the coast of Cochin, China (modern day Vietnam).
- 1945 - A B-25 bomber crashes into the Empire State Building in New York City, killing 13 people.
- 1965 - President Lyndon Johnson sends an additional 50,000 troops to South Vietnam.
28 July Birthdays
- 1844 - Gerard Manley Hopkins, English poet and Jesuit priest.
- 1866 - Beatrix Potter, children's author (The Tale of Peter Rabbit).
- 1887 - Marcel Duchamp, French artist.
- 1901 - Harry Bridges, American labor leader.
- 1902 - Kenneth Fearing, poet and novelist (The Big Clock).
- 1907 - Earl Silas Tupper, founder of Tupperware.
- 1927 - John Ashbery, Pultizer Prize-winning poet (Self-Portrait in a Convict's Mirror).
- 1927 - Baruch Blumberg, physician, medical researcher.
- 1929 - Jacqueline Bouvier Kennedy Onassis, wife of President John F. Kennedy.
- 1943 - Bill Bradley, basketball player, U.S. senator.